How to calculate amount of epi in a solution (1% in a 1.8 mL cartridge)

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Multiple Choice

How to calculate amount of epi in a solution (1% in a 1.8 mL cartridge)

Explanation:
When you’re finding the amount of drug in a solution, you convert the percent strength to mg per mL and then multiply by the cartridge volume. A 1% solution means 1 g of epinephrine per 100 mL, which is 0.01 g per mL, i.e., 10 mg per mL. For a 1.8 mL cartridge, multiply 10 mg/mL by 1.8 mL to get 18 mg of epinephrine. So the total amount available is 18 mg. If you used a different volume or strength, you’d apply the same method.

When you’re finding the amount of drug in a solution, you convert the percent strength to mg per mL and then multiply by the cartridge volume. A 1% solution means 1 g of epinephrine per 100 mL, which is 0.01 g per mL, i.e., 10 mg per mL. For a 1.8 mL cartridge, multiply 10 mg/mL by 1.8 mL to get 18 mg of epinephrine. So the total amount available is 18 mg. If you used a different volume or strength, you’d apply the same method.

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